Dadex Nikasi upvc Red Bush110mm x 50mm

Description

 Red Bush110mm x 50mm

 

Dadex Nikasi pvc pressure fittings local , Suppliers in Islamabad Contact 0322-3540656 Manufacturing , Drain sewerage and ventilation installation

 

What is Dadex Nikasi upvc Red Bush110mm x 50mm ?

 

The Dadex Nikasi UPVC Red Bush (110mm x 50mm) is a specialized reduction fitting designed for non-pressure drainage systems. Dadex is a leading manufacturer in Pakistan, and their “Nikasi” line is specifically engineered for soil, waste, and vent (SWV) applications.

---

1. Description

The Red Bush (short for “Reducing Bush”) is a compact fitting used to connect two pipes of different diameters.

• The 110mm end is designed to fit into a socket (bell end) of a standard 4-inch drainage pipe.

• The 50mm end provides a reduced opening for a 2-inch pipe, typically used for waste-water from sinks, showers, or washing machines.

Unlike a “Reducer,” which is usually a separate coupling, a Bush is often inserted directly into a larger fitting’s socket to save space and create a flush transition.

2. Technical Specifications

Feature	Details
Material	Unplasticized Polyvinyl Chloride (uPVC)
Size	110mm (approx. 4″) to 50mm (approx. 2″)
System Type	Nikasi (Drainage, Sewerage, and Vent)
Standard	Generally conforms to BS 4514 or PS 3214
Color	Light Grey (Standard for Nikasi)
Jointing	Solvent Cement (Cold Welding)
Pressure Rating	Non-Pressure. Designed for gravity flow/ventilation only.

3. Usage & Applications

This fitting is essential for transitioning from secondary waste lines to the main sewage stack.

• Drainage/Sewerage: Connecting a kitchen or bathroom floor trap (50mm) to the main 110mm vertical stack or horizontal drain.

• Ventilation: Reducing a 110mm vent stack to a 50mm terminal pipe if the airflow requirements allow for a smaller exit point.

• Space Saving: Ideal for tight spots in wall cavities or under-floor piping where a long-tapered reducer won’t fit.

---

4. Installation Guidelines

To ensure a leak-proof, permanent joint, follow these steps:

1. Preparation: Clean the outside of the 50mm pipe and the inside of the 110mm socket. Use a fine-grit sandpaper to lightly roughen the surfaces for better adhesion.

2. Dry Fit: Test the fit without glue first to ensure the pipes bottom out in the bush.

3. Application: Apply a thin, even layer of Dadex Solvent Cement to both the bush and the pipe/socket.

4. Insertion: Push the bush into the 110mm socket with a slight quarter-turn to distribute the cement. Immediately insert the 50mm pipe into the bush.

5. Set Time: Hold firmly for 30 seconds. Allow at least 24 hours before “flood testing” the system for leaks.

---

Important Note: While “Pressure Fittings” was mentioned in your query, it is vital to remember that Nikasi is a non-pressure system. It is intended for gravity-fed waste and should never be used for pressurized water supply lines (like those for a pump or main water meter).